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DONE is not an expected state for Raw activities
[simgrid.git] / src / kernel / activity / SynchroRaw.cpp
1 /* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved.          */
2
3 /* This program is free software; you can redistribute it and/or modify it
4  * under the terms of the license (GNU LGPL) which comes with this package. */
5
6 #include "src/kernel/activity/SynchroRaw.hpp"
7 #include "simgrid/Exception.hpp"
8 #include "simgrid/kernel/resource/Action.hpp"
9 #include "src/kernel/activity/ConditionVariableImpl.hpp"
10 #include "src/kernel/activity/MutexImpl.hpp"
11 #include "src/kernel/activity/SemaphoreImpl.hpp"
12 #include "src/kernel/context/Context.hpp"
13 #include "src/surf/cpu_interface.hpp"
14 #include "src/surf/surf_interface.hpp"
15 #include <simgrid/s4u/Host.hpp>
16
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_synchro, simix, "SIMIX Synchronization (mutex, semaphores and conditions)");
18
19 namespace simgrid {
20 namespace kernel {
21 namespace activity {
22
23 RawImpl& RawImpl::set_host(s4u::Host* host)
24 {
25   host_ = host;
26   return *this;
27 }
28 RawImpl& RawImpl::set_timeout(double timeout)
29 {
30   timeout_ = timeout;
31   return *this;
32 }
33
34 RawImpl* RawImpl::start()
35 {
36   surf_action_ = host_->pimpl_cpu->sleep(timeout_);
37   surf_action_->set_data(this);
38   return this;
39 }
40
41 void RawImpl::suspend()
42 {
43   /* The suspension of raw synchros is delayed to when the process is rescheduled. */
44 }
45
46 void RawImpl::resume()
47 {
48   /* I cannot resume raw synchros directly. This is delayed to when the process is rescheduled at
49    * the end of the synchro. */
50 }
51
52 void RawImpl::cancel()
53 {
54   /* I cannot cancel raw synchros directly. */
55 }
56
57 void RawImpl::post()
58 {
59   if (surf_action_->get_state() == resource::Action::State::FAILED) {
60     state_ = SIMIX_FAILED;
61   } else if (surf_action_->get_state() == resource::Action::State::FINISHED) {
62     state_ = SIMIX_SRC_TIMEOUT;
63   }
64   finish();
65 }
66
67 void RawImpl::finish()
68 {
69   smx_simcall_t simcall = simcalls_.front();
70   simcalls_.pop_front();
71
72   if (state_ == SIMIX_FAILED) {
73     XBT_DEBUG("RawImpl::finish(): host '%s' failed", simcall->issuer->get_host()->get_cname());
74     simcall->issuer->context_->iwannadie = true;
75     simcall->issuer->exception_ = std::make_exception_ptr(HostFailureException(XBT_THROW_POINT, "Host failed"));
76   } else if (state_ == SIMIX_SRC_TIMEOUT) {
77     simcall->issuer->exception_ = std::make_exception_ptr(TimeoutError(XBT_THROW_POINT, "Synchronization timeout"));
78   } else {
79     xbt_die("Internal error in RawImpl::finish() unexpected synchro state %d", static_cast<int>(state_));
80   }
81
82   switch (simcall->call) {
83
84     case SIMCALL_MUTEX_LOCK:
85       simgrid::xbt::intrusive_erase(simcall_mutex_lock__get__mutex(simcall)->sleeping_, *simcall->issuer);
86       break;
87
88     case SIMCALL_COND_WAIT:
89       simgrid::xbt::intrusive_erase(simcall_cond_wait__get__cond(simcall)->sleeping_, *simcall->issuer);
90       break;
91
92     case SIMCALL_COND_WAIT_TIMEOUT:
93       simgrid::xbt::intrusive_erase(simcall_cond_wait_timeout__get__cond(simcall)->sleeping_, *simcall->issuer);
94       simcall_cond_wait_timeout__set__result(simcall, 1); // signal a timeout
95       break;
96
97     case SIMCALL_SEM_ACQUIRE:
98       simgrid::xbt::intrusive_erase(simcall_sem_acquire__get__sem(simcall)->sleeping_, *simcall->issuer);
99       break;
100
101     case SIMCALL_SEM_ACQUIRE_TIMEOUT:
102       simgrid::xbt::intrusive_erase(simcall_sem_acquire_timeout__get__sem(simcall)->sleeping_, *simcall->issuer);
103       simcall_sem_acquire_timeout__set__result(simcall, 1); // signal a timeout
104       break;
105
106     default:
107       THROW_IMPOSSIBLE;
108   }
109   simcall->issuer->waiting_synchro = nullptr;
110   SIMIX_simcall_answer(simcall);
111 }
112
113 } // namespace activity
114 } // namespace kernel
115 } // namespace simgrid